// 使用commonjs的模块化规范
const {add, mu1} = require('./mathUtils.js')
console.log(add(20, 30))
console.log(mu1(20, 30))

// 使用ES6的模块化规范
import {name, age, heigth} from './info.js'
console.log(name)
console.log(age)
console.log(heigth)